Audio problem: In the scene where Victor plays the piano for the first time in the movie, we hear him playing long, sustained notes, which obviously need to be played with a pedal down. However, he doesn't use the sustain pedal. What's more strange is, the piano does not even have a sustain pedal.
Audio problem: In the scene where Victor plays his solo for the first time he gets scared from the appearance of Victoria. As he and her are talking Victoria's mother shouts at them for being together. We don't hear Victoria's mother's footsteps like as she was leading Victor's parents for tea. And we would have heard the door creak as Victoria's mother came out from "teatime".
Other mistake: During the opening credits (right after the fish chopping shot) two bearded gentlemen meet in the street. As they part, Lord Barkis suddenly appears behind them. But where did he come from? He didn't walk in from either side, we would have seen him. Nor was there any door he might have come through.
Deliberate mistake: During the dance number in the Dead Bar, the blue pirate has a sword stuck through him with the handle in the front, later it changes to the back, then to the front again. Seen when the groom falls back and grabs the handle, then picks the pirate up and drops him.
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Continuity mistake: In the scene where Lord Barkis and Victoria are having their wedding feast, all of the guests have been served chicken. But, when the corpses crash the feast, and Bonejangles is standing behind Finis and Maudeline, their chicken has been replaced by soup bowls. ("There's an eye in me soup.")
Continuity mistake: The scene where Victor tells Emily to stay in the woods because he has to see his parents, Emily gets the maggot out of her ear. When the maggot is in the snow you see Emily's head right by the screen and no footprints are spotted. But when the maggot tells her something about Victor, footprints appear only a few inches from the maggot.